mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

[karo-tx-linux.git] / mm / rmap.c

diff --git a/mm/rmap.c b/mm/rmap.c
index 962e2a1e13a0f2a9a049c3d9a391591a4244bbdf..2dcd3353c3f679d0da34c2fefe750c41c257b12f 100644 (file)
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -894,9 +894,9 @@ void page_move_anon_rmap(struct page *page,
 {
        struct anon_vma *anon_vma = vma->anon_vma;
 
-       VM_BUG_ON(!PageLocked(page));
+       VM_BUG_ON_PAGE(!PageLocked(page), page);
        VM_BUG_ON(!anon_vma);
-       VM_BUG_ON(page->index != linear_page_index(vma, address));
+       VM_BUG_ON_PAGE(page->index != linear_page_index(vma, address), page);
 
        anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
        page->mapping = (struct address_space *) anon_vma;
@@ -995,7 +995,7 @@ void do_page_add_anon_rmap(struct page *page,
        if (unlikely(PageKsm(page)))
                return;
 
-       VM_BUG_ON(!PageLocked(page));
+       VM_BUG_ON_PAGE(!PageLocked(page), page);
        /* address might be in next vma when migration races vma_adjust */
        if (first)
                __page_set_anon_rmap(page, vma, address, exclusive);
@@ -1481,7 +1481,7 @@ int try_to_unmap(struct page *page, enum ttu_flags flags)
                .anon_lock = page_lock_anon_vma_read,
        };
 
-       VM_BUG_ON(!PageHuge(page) && PageTransHuge(page));
+       VM_BUG_ON_PAGE(!PageHuge(page) && PageTransHuge(page), page);
 
        /*
         * During exec, a temporary VMA is setup and later moved.
@@ -1533,7 +1533,7 @@ int try_to_munlock(struct page *page)
 
        };
 
-       VM_BUG_ON(!PageLocked(page) || PageLRU(page));
+       VM_BUG_ON_PAGE(!PageLocked(page) || PageLRU(page), page);
 
        ret = rmap_walk(page, &rwc);
        return ret;